tiny ref optimizations

Author: rms80

distance/DistPoint3Triangle3.cs

@@ -63,10 +63,10 @@ public static double DistanceSqr(ref Vector3d point, ref Triangle3d triangle, ou
             Vector3d edge0 = triangle.V1 - triangle.V0;
             Vector3d edge1 = triangle.V2 - triangle.V0;
             double a00 = edge0.LengthSquared;
-            double a01 = edge0.Dot(edge1);
+            double a01 = edge0.Dot(ref edge1);
             double a11 = edge1.LengthSquared;
-            double b0 = diff.Dot(edge0);
-            double b1 = diff.Dot(edge1);
+            double b0 = diff.Dot(ref edge0);
+            double b1 = diff.Dot(ref edge1);
             double c = diff.LengthSquared;
             double det = Math.Abs(a00 * a11 - a01 * a01);
             double s = a01 * b1 - a11 * b0;

queries/MeshQueries.cs

@@ -176,10 +176,10 @@ public static double TriDistanceSqr(DMesh3 mesh, int ti, Vector3d point)
             Vector3d edge0 = V1 - V0;
             Vector3d edge1 = V2 - V0;
             double a00 = edge0.LengthSquared;
-            double a01 = edge0.Dot(edge1);
+            double a01 = edge0.Dot(ref edge1);
             double a11 = edge1.LengthSquared;
-            double b0 = diff.Dot(edge0);
-            double b1 = diff.Dot(edge1);
+            double b0 = diff.Dot(ref edge0);
+            double b1 = diff.Dot(ref edge1);
             double c = diff.LengthSquared;
             double det = Math.Abs(a00 * a11 - a01 * a01);
             double s = a01 * b1 - a11 * b0;